A B C s of smoke systems
The biggest wall you are going to hit is room in the plane and weight. That size of plane will be tough to get the system in. You need a tank a pump and a battery all mounted around the C.G. All this stuff together will be about a pound. Smoke systems are cool but try an experiment for me. Put a pound of lead on the CG inside your plane and fly it. The 4 Star can handle the weight but I bet it flyes like a turd with that extra pound. You guys should wait until you have a bigger plane. If you want to have fun with this one try putting 20' of streamer on the tail and maybe each wingtip. It's not smoke but it looks cool.later daveo